Method of forming spacing ring for tubes in high temperature env

Details Method of forming spacing ring for tubes in high temperature env Method of forming spacing ring for tubes in high temperature env

1991-01-23

1992-05-12

Eley, Timothy V.

Metal working

Shredding metal or metal wool article making

Metal wool bundling

29 451, F16C 2702

Patent

active

051115611

ABSTRACT:
A spacing ring for placement between a radially inwardly facing annular surface on a first member and a radially outwardly facing annular surface on a second member to maintain the first and second members in predetermined radially spaced relationship. The ring consists of a plurality of matted metal threads formed into an annular configuration. The ring has a radially inwardly facing surface to surroundingly engage the radially outwardly facing annular surface on the second member and a radially outwardly facing surface to be surroundingly engaged by the inwardly facing annular surface of the first member with the radially inwardly facing annular surface on the first member and the radially outwardly facing annular surface on the second member in axially overlapping relationship. The invention also contemplates a method of forming the spacing ring. The wool material is wrapped around an annular surface on a core bar. The wool material is both radially and axially compacted on the core bar with a predetermined compressive force.

REFERENCES:
patent: 4417733 (1983-11-01), Usher
patent: 4463959 (1984-08-01), Usher et al.
patent: 4559248 (1985-12-01), Sumiyoshi et al.
patent: 4559249 (1985-12-01), Arigaya et al.
patent: 4747624 (1988-05-01), Faber et al.

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